Stallworth, who was a first-round draft pick of the New Orleans Saints, was headed toward the beach when he hit a 49-year-old man around 7 a.m., said Miami Beach police spokesman Juan Sanchez. The unidentified pedestrian was taken to a nearby trauma center, where he was pronounced dead about an hour later. He was near a crosswalk but it's not clear if he was crossing legally.

Stallworth was cooperating and no charges have been filed, Sanchez said. Officers drew his blood to test for drugs or alcohol, which is routine, but police said it was too early to tell if Stallworth was impaired or violating traffic laws. Police would not say where he was coming from or where he was headed.

A message seeking comment was left on the voicemail of his agent, Drew Rosenhaus.

Stallworth signed a seven-year, $35 million contract with the Browns as a free agent before last season but hardly played because he was hurt. He was due a $4.75 million signing bonus Friday.